It's a football stadium full stop. Yes, it can host concerts and rugby league, but it was specifically designed to have steep stands that bring the fans as close to the pitch as possible to generate a claustrophobic atmosphere. That wasn't done for Taylor Swift.
The lack of Everton branding is a deliberate and suspect decision. The stadium looks magnificent, but it's not moaning to point out the roof is currently unsightly and you wouldn't know that the team who plays in, who nearly went out of business building it, plays in blue.