It really often is due to some older bikes conking out at idle.

The Ducati 749 and 999 is notorious for this, especially if it's not up to temperature.

It's also got a snatchy dry clutch and will often stall if there's not enough revs at takeoff.

A lot of carbed bikes are like this. It can be difficult or in fact almost impossible for some bikes, to set up the carbs so they work well under all conditions, especially on air cooled models. As the engine and all the other parts heat up and expand, including the carbs and jets etc, they may behave differently.

I've had issues with my 749S despite it being set up properly by a local Ducati expert. When it's cold it will sometimes die and other times when I get back from a ride it'll decide to switch itself off. Fun fact, the Ducati xx9 series has what looks like a choke but in fact it's just a lever to set the revs higher for starting. Given these bikes are now really old, the lever tends to slowly slip back to the lowest setting as the bike vibrates itself all over the place. I believe the 749 is fuel injected but it behaves for all the world like a carbed bike.

How some bikes operate on a cold day vs a really hot day can be quite different. This is even more apparent on highly strung racing engines where street riding is quite literally an afterthought simply for homologation into racing series.

Having said that, there's no excuse for ripping the throttle like you're about to launch down the drag strip but a blip is often necessary. Some engines don't rev up very quickly either so if you're not sure when the lights are going to change, blipping the throttle will keep it above the minimum level required for launch. My vintage 1963 125cc single cylinder racer is a pain for this.

Most fuel injected bikes don't require any blipping. Setting up the fuel mapping is much easier than setting up a carb, which is always going to be a compromise.