I agree with this. That's why I avoid most web and SAAS platforms for things nowadays. I make an exception for things where I can get my data off their platform in a format I want pretty easily (i.e. I will use Google Docs because I can easily download the files as DOCX or PDF files) or the data I'm storing with them is mainly settings or preferences (I.e. Youtube knowing I'm subscribed to X publishers).
I've been burned a few times and lost data just because a company goes out of business, or I decided I wanted to use a different platform and all my data from before was locked in to this other proprietary system.
So yeah, if you're coming up with this hot new productivity/task software and I can't either download the data in an open format or at least use the software on the desktop, 100% offline? No thanks.
And in general I hate subscriptions unless I'm getting access to libraries of content, i.e. Spotify, Netflix, or it's just for updates. By that I mean I get the software and a year's worth of updates when I paid for the license, and it's mine, you can't take access away from me, I have it for as long as I want, and I only pay again when I decide I use the software enough and the updates are compelling enough that I really want to update.
Which is another reason why SAAS and Web apps don't really work for me, because they almost invariably charge a monthly fee and there's nothing to download so I just lose access the moment I stop paying. There are exceptions, but those are rare (mainly web hosting and cloud storage).
It's for this reason why I refuse to pay for Adobe Suite, because you only have access for as long as you pay the monthly subscription. Screw that, my copy of Adobe Illustrator pre-subscription still gets the job done fine thanks. I might have upgraded by now if they hadn't switched to a subscription model, but now I'm going to keep using that as long as humanly possible, then search for an alternative.