This is how you step on a path of a genocide (https://en.wikipedia.org/wiki/Genocide)
As a Russian immigrant in US, i support kicking out from US or any other country any Russian who wouldn't condemn in straight clear words Putin's fascist regime and the genocide it conducts in Ukraine. Anything less is just a support of what is going on.
For any public figure it is doubly so. Grischuk didn't even use the word "war" in order to not have issues with Russian government. Well, it is a war and one can't be on good terms with all the sides simultaneously, and there is no neutrality when it comes to genocide and ethnic cleansing. Ukrainian civilians get killed being intentionally bombed in their homes just for being Ukrainians (it is called genocide), Ukrainian women and children are running for their lives to Poland (as their lives are in danger just for them being Ukrainians, and such ethnicity based forced displacement constitutes ethnic cleansing), with some walking tens of kilometers in cold winter, and even some women giving birth in-route. If you don't take their side then you really should be kicked out of the civilized world.
He said he didn’t use the word “war” to avoid being censored, so that the Russian media can quote him directly.
How much more critical have you been of your own country invading other nations?
The purpose of the cultural sanctions is not to punish the individual sportsmen or artist or change their opinions, the purpose is to undermine the popular support for the war and the Putin-regime.
The Putin regime have used sports as a point of national pride in order to strengthen popular support. So it stands to reason that excluding Russia from sports would weaken the regime in some degree.
Apparently many Russians are not even aware they are involved in a war due to the massive propaganda and censorship. Maybe Russia getting excluded from all sports event might at least get them to ask some questions about what is going on?