Allow creation of a default "Sheet View"
"Sheet View" is a great feature, but doesn't it require the user to remember to create the sheet view?
The problem is that if I send an invite to 100 people to collaboratively edit an Excel spreadsheet with filters, it only takes one of them to leave the filters in a nondefault state to ruin the party for everyone.
I suggest allowing the creation of a "Default" sheet view that is used whenever the sheet is opened online for collaboration. This would allow the default view to be fine-tuned by the spreadsheet maintainer.