Ideally just At the top there would be All Matches, First Class, Limited Overs Which would toggle it by clicking each one. Cribb likes them all together so that could be the default.
"Form" is something that exists across formats, so that's what the measure is there for. If you want to work out how someone has done in a specific format lately, there's the comp stats for this season. Looking at someone's last, say, three games in one format while ignoring other matches in between doesn't really tell you anything, as far as I see.
That's kind of my point. He's like that regardless of short-term form, and the season stats are there to show that.
