What you say definitely makes total sense..but the examples given were for full immigration reform. This country cap removal is just a small change to existing system.Is it being considered for voting? Too many bills and on top of it the merit based proposal draft... seems another ploy to divert... dont know. not holding breath for it because:
https://www.politifact.com/punditfact/statements/2018/jan/26/ronald-brownstein/did-senators-pass-immigration-reform-bills-2006-20/
The ugly truth about politicians - Here the example is about the REPs:
The U.S. Senate passed bipartisan comprehensive immigration reform in 2013, but Republican Speaker of the House John Boehner refused to bring it to the floor.
In 2017-18, Republicans had absolute control of the House, Senate and executive branch. They could have enacted anything they wanted. They passed one piece of major legislation. Remember? A huge tax cut for the wealthiest among us followed by indebting future generations to pay for it.
Moreover whoever (IV) is pushing for this has a professional DC lobbyist on board to get things moving and they have convinced senator grassley who is considered highly influential to not to oppose the bill.. there is huge support from silicon valley too.