First off, according to Canon Rumors, the DSLR company is working to finally bring in-body image stabilization (IBIS) to its next round of DSLR designs. Chiefly missing when the EOS R and EOS S/R full-frame mirrorless camera came to market last year, many photographers have been pushing for Canon to play catch up with Sony.
But it probably took the news that Nikon is going to bring it to the Nikon D6 for Canon to get serious about it.