It is a pain to switch over; but that is the way it is with all sorts of proprietary programs. They just tighten the noose regardless if you pay or not.
You're right, it's a pain to switch, BUT: you only have to do it once, if you do it right. Switch to an alternative that gives you the functionality you need (TOTP, and that's it, for me at least) and allows you to export your data to a format that can be reimported to another application at another time (or restore from it in case catastrophe hits).
Once you get rid of the noose, it's no longer a hassle.
For everyone going through this situation, please do a little bit of homework and read up on the capabilities of whatever alternative you're going to pick, and make sure that your data is yours and under your control, and you can back it up in a readable format.
It is a pain to switch over; but that is the way it is with all sorts of proprietary programs. They just tighten the noose regardless if you pay or not.