Omission implies that it was something that was always supposed to be there but got left out by mistake. All of these decisions were development choices, not omissions.
Disagree.
o·mis·sion
? ?/o??m???n/ Show Spelled[oh-mish-uhn] Show IPA
noun
1.the act of omitting.
2.the state of being omitted.
3.
something left out, not done, or neglected: an important omission in a report. o·mit
? ?/o??m?t/ Show Spelled[oh-mit] Show IPA
verb (used with object), o·mit·ted, o·mit·ting.
1.to leave out; fail to include or mention: to omit a name from a list.
2.to forbear or fail to do, make, use, send, etc.: to omit a greeting.
None of these definitions suggest they were left out "by mistake".
These omissions were development choices. And it's frustrating.