Longer term business rates need to be adjusted to equalise the tax burden between a shop and an internet retailer distribution centre. The tax regime should not be helping to accelerate the demise of shops.
Rents are a much bigger burden, especially on the High Street.
You have buildings/blocks of buildings that were bought as investment vehicles years, sometimes decades ago. The rents charged to shops are adjusted (mostly at lease renewal, although some have mid-term adjustment mechanisms) dependent on current property value. The landlord companies/owners are getting returns on their investments that are at eye-popping rates compared to their initial investment (even if you factor in an inflation-indexed rise the asset value). And they still have that massive, over-inflated asset in their ownership.
This more than business rates cripples retail businesses on the high street.