This letter continues our prior work in Jin et al. (2021) on efficient PHY layer abstractions for scaling link simulations for complex scenarios to include the essential real-world impact of imperfect channel estimation. We extend the EESM-log-SGN abstraction by incorporating a model for effective SINR including channel estimation error, for multiple-input and multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) configurations, tailored towards IEEE 802.11ac/ax networks. The developed methods are then validated under different MIMO configurations for subsequent inclusion in ns-3 ( <uri xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">www.nsnam.org</uri> ) based cross-layer network performance evaluation.