> two motors instead of one + big battery ... elevated brakes degradation
You might be simplifying a bit too much here. The most successful hybrid powertrains are built from the ground up as hybrids and the "hybridized" parts actually replace ICE parts that aren't needed anymore. For example, the HSD system in a Toyota hybrid replaces the clutch, gearbox, starter and alternator, and the result is much more robust.
Also the brakes on a hybrid usually degrade slower, because of recuperation.
You might be simplifying a bit too much here. The most successful hybrid powertrains are built from the ground up as hybrids and the "hybridized" parts actually replace ICE parts that aren't needed anymore. For example, the HSD system in a Toyota hybrid replaces the clutch, gearbox, starter and alternator, and the result is much more robust.
Also the brakes on a hybrid usually degrade slower, because of recuperation.