Has it become easier to pre-compute tables after MD5 collisions?
Not really.
Finding distinct $m_1, m_2$ such that $H(m_1) = H(m_2)$ is a different problem than finding $m_1, d$ such that $H(m_1) = d$. If the first problem is hard it's called collision resistance, if the second problem is hard it's called preimage resistance.
MD5's collision resistance is practically broken - it's quite easy to generate a pair of $m_1, m_2$ that produce the same digest in a few seconds on a consumer CPU. However this result is not useful for creating pre-computed lookup tables at all, the contrary is true - you want as many different digests in such table, rather than collisions.
MD5's preimage resistance is theoretically broken (with a computational complexity $2^{123.4}$ according to Wikipedia), but that's not a practical result. So for example if I know that I still need a digest with value 0xFFFFA3BFFFFFFFFFFFFFFFFFFFFFFFFF in the table there is still no easy way to find an input for that digest.