That’s not true. If you know anything about proper training you’ll know that it’s important to have periodised training with different intensities at different times
Which you absolutely don’t need an e-bike for.
You’re argument is analogous to weight training with a spotter doing half the work for you, as if this helps because training at your one rep max all the time isn’t optimal! Just take half the weight off the bar instead!
I would concede that being able to keep up with your friends on a group ride is somewhat justifiable but also comes across as a thin and tenuous excuse. If you are using fast group rides for base training than maybe you are doing it wrong? And what happens when inevitably everyone is on an e-bike? Do you all take the batteries out?
How **** fit do you have to be to ride a gravel bike along canal paths anyway FFS?
That’s a bit uncalled for don’t you think? You don’t know anything about my injury or illness history, and anyway 30 miles a day commuting won’t make you slow! :)