No my bad for not being clear. If all you want is a bunch of LUTs then the high end fpga is the right answer. FPGA today is a lot of other things besides PL (serdes, cpu, DSP, ML, DDR IF...) and some of those features are only available on the bigger FPGAs. FPGA portfolios have man gaps due to the enormous costs of designing each one of those FPGA products.