Indeed this change has several drawbacks:

- less competition for the affected routes

- harder transfers between modes of transportation (physically)

- harder bookings across modes of transportation

- disappearance of entire routes made possible by hubs from flight-only OTAs (the vast majority of them)

I agree with the sentiment, but I suppose they should just be taxed higher and somehow forced to include a note like:

“A train/bus transfer between CDG and XYZ is also available with <third party>. Wanna book just up to CDG?”

Not sure which way you lean here.

Are you saying you are on the side of banning stuff, or do you think it's a bad idea?

The ban is kind of the equivalent of a quick, hacky fix of some bug. It is better than nothing, but in general I'm against banning stuff as the problem is that the flights are too cheap, partially due to reasons like tax exemption on fuel.

There are also two bugs related to people, and they're hard to fix:

- short term costs are more noticeable than long term costs: saving money VS saving the planet

- tragedies of the common are hard to fix: we all need to save the planet, but others are not minding it, so I might as well ignore it and at least save some money too