Limerick v Tipperary again but this time it’s different

Form is clearly temporary in hurling. If the bookmakers are to believed, the 100% 2019 Munster SHC record Tipperary bring to Limerick on Sunday is of no consequence and will be broken. Tipp’s four-point win over the same opposition 11 days ago, having lost two of their in-form players in the first half, appears to be irrelevant too.
So other than Limerick being the reigning All-Ireland and Division 1 champions, what gives exactly?