Authorizing Taco costs twice as much as tBTC/RandomBeacon

[somaweb3]

Why does authorizaing Taco costs twice as much? Painful on ETH mainnet when fees are high, which is always

tBTC:
0.000591147823839318 ETH
($1.98)
https://etherscan.io/tx/0x23057afed0a034f7bd75ff6ff7c6089f1c6acc9c34e519f6bafe28ee04627f9e
RB:
0.000727207388622816 ETH
($2.43)
https://etherscan.io/tx/0x3957620d478e60348ccd246f4ec2890376d880a67d8819492d56481eff23738f
Taco: 0.00154190869298536 ETH
($5.16)
https://etherscan.io/tx/0x23657a4996af206874599b453c9f5257bc779dc9b775b0951bc0394c80302e11