also notable that the Dem senate primary had 165K more votes cast than the GOP side even given how high profile the Paxton/Cornyn race is. Still, we're talking 4 million total votes cast. In the last off year Tx senate race (Cruz/ORouke), 8 million votes were cast so still not any kind of slam dunk indicator for the general. If you do want to be optimistic, Cruz only won that race by 215K votes. If Cornyn loses, the GOP will not be running as an incumbent.
On that score, I don't know enough about Hunt to know who his voters are. Cornyn ended up outpolling Paxton slighty, but probably whichever picks up most of Hunts voters is going to win. I think Hunt has tried to position himself closer to Trump than Cornyn, so maybe his votes go to Paxton.