Not a fan Elinf lol. One of the reasons i chose the lisk gun was because of the evasion. There are already 2 attack speed guns out there so this adds a bit more variety. A different option you could have asked is to have him switch evasion on the lisk gun with the attack speed on the gti gun (as long as my current liks gun isn't changed

).
Yes evasion is much easier to get these days due to the catacombs items (only worth using 1 part though tbh), the dual evasion wearing cards and namazu accessories, but none of those were available when the lisk gun was first released so changing it now is a bit unfair to those who already made the gun.
As much as i would like Sedy to make 2 lisk guns available for us to choose, the only way that would work would be to give the same options to other classes (i.e evasion daggers, and even though i know he won't do it an attack speed 2 hander hehe).