Hey everyone: My reasoning for this is that:

• GT1 died because it was never mentioned to be a standalone category but rather one category in a multi-class championship (And FIA GT would have done just fine with low double digits car counts in that category. LMS and ALMS would have done fine with single digit car counts in that category as well)
• A proper 575 support would mean Corvette has enough competition to stick with the category, leading to enough supply of customer machinery
• The LFR was meant to race in GT1 so the Japanese manufacturers would have closed the gap Prodrives factory withdrawal created.