I guess this is something that could be changed via a software upgrade so I guess if enough people complain then Bosch may do something. What would be even better would be the option to choose the type of assistance preferred via the app.
My 2022 Trek Rail does this - 3 seconds of walk then slows then 3 seconds of walk. I just use the pause to catch up with the bike pushing up hill so not a major issue for me. I would prefer a constant pull though,