Maybe, with a limited number of jets and an operational deployment within their first year of being in the UK, they’ve had more important things to do than commit to a full display work up for one of their few qualified pilots?
The RAF does not let its’ pilots fly full displays in front of thousands of people without a comprehensive training programme.
In the post Shoreham world, what you saw would have been the maximum permissible level of performance within the current constraints. Maybe just be thankful it was able to make an appearance at all?
Maybe wait for next year. Or the year after.
BV