You cut too close to the growth node and got the affectionately called "FIM" (fuck i missed). The damaged bits recovered and re-formed some axillary buds (branches). It's something that won't always work 100% and gives varying results when it does work, so it's not really something you can plan around. It's an e-peen to some people and a useless "technique," overall.
train it any way you want.. cut them off, leave them, doesn't matter.
You should have a plan for all of this to avoid wasting time and resources. Work backward from a target canopy. I shoot for 2.5-3 colas per sq ft. How many i use per plant comes down to symmetry and ease of making it happen... e.g. 8 colas is easier to keep even than 9 or 10, because you can divide it up in a way where each has very similar if not equal vascular tissue leading to each colas.
e.g. The first top i get 2 nodes / 4 branches (above 3rd node, remove 2 lowest branches that tend to be weak growth - i wait for 6-7 nodes before topping. It wastes a handful of days but generally results in a more consistent outcome)... i top a second time to get 8 colas per plant - not immediately. I want some growth away from trunk so it's not all bunched up together. I start training the branches that gain apical dominance immediately while the other stuff catches up. Once evened out vertically, the distribution of growth will even out, too. Since the axilla rotate 90-degrees each node the plant adds, i also top above a node that points these branches in the best direction to space out he colas evenly.
Remove everything below any major bend.. it'll never grow well.
plant benders, a trellis, some garden wire... doesn't matter how you train it. Will say a net is probably the easiest to level it out. I use all three as needed. I use the 90-degree benders early on the 2 branches with apical dominance... this sets where the first scrog will be positioned.
2-4-8-16 colas? you do what you gotta do to properly fill the space without overcrowding. Stick to ~3 colas per sq ft and it makes life easier training the plants, supporting the plants and trimming the plants at harvest. Much less work than a chaotic, over-crowded canopy competing for light and likely failing to support itself with weak ass stems.