Don't modify it that way if you don't have to.
The first version is a lot better because Push-Ups and Inverted Rows suffer from the same disadvantages: You can't "scale" them very well.
Yes you can use a backpack for Push-Ups or for Inverted Rows, but measuring progress gets tricky and often inaccurate.
Also Barbell Rows and Dips are more practical and especially the former is in my eyes simply a better exercise than the inverted row.
Inverted Rows are valuable for trainees who like to do bodyweight exercises or who don't have a barbell/the necessary weights to challenge themselves
