https://www.taler.net/en/faq.html
> Taler e-money is issued with a validity period. One month before the expiration date, your wallet should automatically exchange any digital cash that is about to expire for new digital cash with an extended validity period. However, if your wallet is offline for an extended period of time, it may be unable to do so. Ensure your wallet is regularly online to avoid losing money due to expiration!
Staying disconnected is not what makes them expire, but you need connection to ‘renew’ them before they do expire, if you plan on keeping your tokens for a very long time (say, years). At least that’s my reading of it.
> This is infinitely worse than Bitcoin.
If we only consider this single aspect and ignore all the other ways in which it’s arguably better than Bitcoin, then yes.