Participant allowed to defer early. What about Minimum Gateway?

The 401k/PS plan has 1 year of service eligibility.  Two NHCEs were allowed to defer before meeting the requirement.  The plan is going to be amended to allow them to make deferrals but they will not be eligible for PS contributions.  Are they required to receive the 5% minimum gateway (Plan is cross tested)?  

Thanks

No, they are not benefitting under the 401(a) section of the plan. BUT, if the plan is top heavy then they must get 3% TH - but still otherwise excluded so no gateway.