I don't think most people left solely because of 3rd party apps being killed. I think they left because of the loss of trust that move and the subsequent negative PR created.
It's natural people are looking for something new, even though the quality of life is lower for now. Some things are more important than convenience.
Edit: I forgot to answer the question. No, I don't think it's ironic. I think it's telling.
Well for me it's that Reddit simply won't have any third-party apps in the near future (because of the pricing), while fediverse apps like lemmy and kbin, despite not having a wide range of options for them right now, can have as many as it wants and have no way to kill them.
Plus if they're wiling to do this, who knows whether they'll keep old.reddit.com around in the near future as well?
Do you really take a pragmatic stance like this for everything in life, or do you just not like to talk about abstract concepts like emotions, trust, having principles etc.?
What I'm really asking is, does being treated like shit and taken for an idiot by a huge company have any bearing on your decision or is it truly only about the user experience of using said company's services?
Uh... I suppose I am taking a pragmatic stance? At the end of the day it's just an internet service, I don't have any "personal connections" with Reddit so I don't feel anything remotely close to "being treated like shit and taken for an idiot".
They're doing stuff that's inconveniencing and disrupts my expected flow, so I'm leaving the platform - that's more or less the whole situation for me.
The issue I have with your stance is dependent very much of the nature of the service we are talking about.
It's not "just an internet service" in a vacuum. It's a huge base of influence, powerful enough to affect election results, public policy and a platform for ideas which can have life and death level importance for some people.
I wouldn't talk about principles and trust if the service in question was something like an app to manage your personal finances, watch tv shows on or anything like that. We're talking about a company with enough influence to affect millions of lives, which can in turn be affected only by millions of lives taking a stance towards it.
I don't know how else to explain this. Some things are, by their nature, aren't supposed to be personal choices. One can have an opinion, and one can have personal reasons to do as they please, but I think one should at least have some awareness of what the thing they're forming opinions on influences ultimately.
You may say "what difference could my personal choice as a single person make", and that's valid, but if that was true in every case, marketing and outreach wouldn't have any effect on life, crowdfunding wouldn't be a thing, people on youtube wouldn't literally beg for likes and subscribes, of which everyone can have one per video and per channel respectively.
I see, I think that's a valid point to make. For myself though, I don't really see or use Reddit in that manner since I always considered it to be a content and link aggregator. It has a collection of communities that I subscribe to see links/images/videos, and that's it. So in that sense I don't personally view it more than, as you say, an app to to manage your personal finances and watch TV shows.
Of course that's not to say that it's not capable of the things you've mentioned, it's absolutely able to influence the opinions of those that participate in the platform. And by extension it's reasonable to expect that the management of the platform needs to be trustable - which is being put to question with their recent actions.