I guess it's just a personal thing. I personally cannot stand the "Please Activate Windows" watermark and MAS is such an easy tool that it just makes sense to do it. It's not like this announcement kills MAS, you can still use the other activation methods
I guess this will vary across clients but I've used Voyager (formerly known as wefwef) till Boost for Lemmy came out. It's funny because, on Voyager I would love that this bot exists cus the normal https hyperlinks wouldn't work directly on Voyager, it would just open up an external browser tab and only the link posted by the bot would open in the app itself
Meanwhile on Boost for Lemmy, the normal https links work just fine, directly pointing to the community in the app itself, but the one posted by the bot doesn't work at all (it's not even hyperlinked)