The election brought more SNP members of Parliament. The SNP doesn't exist to bail out Corbyn (Who wouldn't declare his preferences), theunknownknown
The SNP do not exist to prop up Labour, Tory or anybody else's chosen path. I am a remainder SNP supporter but live in England. I understand why the SNP did as they did, but wish it didn't happen too.
I recall how Labour and Tory leaders did nothing to support the bid for Scottish Independence and helped pump out hostile propaganda against it. Hardly surprising that the SNP recognised their future by another route.
Remember what happened to the odious DUP who supported Boris Johnson?